/Engine/Source/Runtime/InteractiveToolsFramework/Public/BaseGizmos/GizmoElementBase.h
Set mesh render state hover material attribute.
virtual void SetHoverMaterial ( [TWeakObjectPtr](API\Runtime\Core\UObject\TWeakObjectPtr)< [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) > InHoverMaterial, bool InOverridesChildState )